使用curl下载Xcode7.1

curl 'http://adcdownload.apple.com/Developer_Tools/Xcode_7.1/Xcode_7.1.dmg' -o Xcode_7.1.dmg -H 'Accept-Encoding: gzip, deflate, sdch' -H 'Accept-Language: zh-CN,zh;q=0.8,en;q=0.6' -H 'Upgrade-Insecure-Requests: 1' -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36' -H 'Proxy-Authorization: Basic c3BlY3RyZTp6aHVqaW5n' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' -H 'Cookie: dssf=; s_vnum_n2_us=; s_orientationHeight=888; s_fid=04FAEEEBC45D838B-1AB5ECABBC499AF5; s_orientation=%5B%5BB%5D%5D; s_cc=true; ADCDownloadAuth=DSUeebaHPclU8GSUtvKzIKHwdbDVzXSIkc1CnSnIPnsK3reeJYFp6%2FIbQZNzEbR4A0rBZ891OZuS%0D%0ASsiciVYB5AGIloeUMGMsOVGc2J8RPqRi5zdit%2F7MXKev%2Fs%2FE7BJthMhwS5HLMEZRW77WmI3oQ6zI%0D%0AwsqEARgLRN9H1O8ApPqWCNVT%0D%0A' -H 'Proxy-Connection: keep-alive' --compressed